OsELF3-1, an Ortholog of Arabidopsis EARLY FLOWERING 3, Regulates Rice Circadian Rhythm and Photoperiodic Flowering
OsELF3-1, an Ortholog of Arabidopsis EARLY FLOWERING 3, Regulates Rice Circadian Rhythm and Photoperiodic Flowering
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OsELF3-1 是拟南芥 EARLY FLOWERING 3 的直系同源物，调节水稻昼夜节律和光周期开花
DOI：
10.1371/journal.pone.0043705
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发表时间：
2012-08
期刊：
影响因子：
3.7
通讯作者：
Zhao J, Huang X, Ouyang X, Chen W, Du A, et al.
中科院分区：
文献类型：
--
作者：
Zhao J, Huang X, Ouyang X, Chen W, Du A, et al.
拟南芥EARLY FLOWER 3（ELF 3）作为一个时间摄取者（zeitnehmer），负责昼夜节律的产生和光周期开花的调控。水稻中存在两个ELF 3的同源基因（OsELF 3 -1和OsELF 3 -2），但它们的功能尚未完全确定。在此，我们对OsELF 3 -1的功能进行了表征，发现它在水稻抽穗中比OsELF 3 -2发挥更大的作用。结果表明，OsELF 3 -1可能通过正调控OsLHY的表达和负调控OsPRR 1、OsPRR 37、OsPRR 73和OsPRR 95的表达来影响水稻的昼夜节律系统。此外，OsELF 3 -1还参与蓝光信号转导，通过激活Ehd 1基因的表达促进水稻在短日照条件下开花。此外，OsELF 3 -1抑制开花抑制因子Grain Number，Plant Height AND Heading Date 7（Ghd 7），从而间接促进长日照（LD）条件下的开花。综上所述，我们的研究结果表明OsELF 3 -1在水稻的昼夜节律调节和光周期开花中是必不可少的。
Arabidopsis thaliana EARLY FLOWERING 3 (ELF3) as a zeitnehmer (time taker) is responsible for generation of circadian rhythm and regulation of photoperiodic flowering. There are two orthologs (OsELF3-1 and OsELF3-2) of ELF3 in rice (Oryza sativa), but their roles have not yet been fully identified. Here, we performed a functional characterization of OsELF3-1 and revealed it plays a more predominant role than OsELF3-2 in rice heading. Our results suggest OsELF3-1 can affect rice circadian systems via positive regulation of OsLHY expression and negative regulation of OsPRR1, OsPRR37, OsPRR73 and OsPRR95 expression. In addition, OsELF3-1 is involved in blue light signaling by activating EARLY HEADING DATE 1 (Ehd1) expression to promote rice flowering under short-day (SD) conditions. Moreover, OsELF3-1 suppresses a flowering repressor GRAIN NUMBER, PLANT HEIGHT AND HEADING DATE 7 (Ghd7) to indirectly accelerate flowering under long-day (LD) conditions. Taken together, our results indicate OsELF3-1 is essential for circadian regulation and photoperiodic flowering in rice.
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影响因子：
16
作者：
Yu, Jae-Woong;Rubio, Vicente;Lee, Na-Yeoun;Bai, Sulan;Lee, Sun-Young;Kim, Sang-Sook;Liu, Lijing;Zhang, Yiyue;Irigoyen, Maria Luisa;Sullivan, James A.;Zhang, Yu;Lee, Ilha;Xie, Qi;Paek, Nam-Chon;Deng, Xing Wang
通讯作者：
Deng, Xing Wang
影响因子：
7.3
作者：
Ryu, Choong-Hwan;Lee, Shinyoung;An, Gynheung
通讯作者：
An, Gynheung
影响因子：
56.9
作者：
Huang, W.;Perez-Garcia, P.;Mas, P.
通讯作者：
Mas, P.
影响因子：
7.4
作者：
Hayama, R;Coupland, G
通讯作者：
Coupland, G
影响因子：
7.4
作者：
Matsubara, Kazuki;Yamanouchi, Utako;Yano, Masahiro
通讯作者：
Yano, Masahiro